Ventilating medium for cars.



No. 793,962. PATENTED JULY 4, 1905.

` C. l?, BONNBTT.

VENTILATING MED'M POR CARS..

APPLIOATION FILED Mw w 1004.

ltliniirnn Starts Patented July t, 1905.

Partnr tllrricn.

CHARLES l). lltlllhllfllffll, Ol? NEWr YORK., N. lf.

SPECIFIUATN forming' part of Letters Patent No. 793,982, dated July lt, 1905.

Application filed May 2, 1904. Serial No. 205,918.

lie it known that l, @nannies l). oNNn'nr, a citizen ot the United etates, and a resident ot the city ot VNew York, lVillianisbridge,

borough ot the Bronx, in the county and titate ot New X. ork, have invented a new and linproved Ventilating Medulin lfor Cars, ot which the t'ollmring is a tull, clear, and exact description.

The purpose of the invention is to provide means tor Ventilating cars in a thorough manner and without subjecting the occupants to dralts, and in the construction o'li the appliance to provide means lor regulating the amount oli air to be admitted, the said means being coiweiliently operated trom the interior ot the car, and lurther to so constructthe npper portion ot the car that the foul air will be sucked out trom the interior et the car and tresh air admitted.

The invention consists in the novel construction and combination et the several parts, as will be hereinafter fully set forth, and pointed out in the claii'ns.

lteterence is to be had to the accompanying drawings, forming a` part o this specification, in which similar characters ot relierence indi late corresponding parts in all. the figures.

Figure l is a sectional plan `view of the upper portion ot a car and a plan View oft the applied improvement. Fig. 2 is a cross-section through the root portion oit the car and the applied device, the section being drawn on an enlarged scale; and Fig. 2l is a detail perspective view of portions et the device.

A represents the root of a car, which may be ot the ordinary construction.

l represents the clearstory et the car, and C a portion ot the side construction.

The space between the roof oit the car and the clearstory is open at the side portions ot the clearstory, with. the exception oi" the ends of the space, which are practically closed by box-partitions l0. Furthermore, also, in the construction of the upper portion ot the car a box-partition ll is termed at the central. portion thereof, extending troni the clear-story down to the main roof portion A, which central box-partition is shown in VFig. l. The open space at the sides oit the clearstmfy is iudicalml in li`ig. 2 by the relierence-in'uneral. 112, and this open space may be partially closedv at any time by means oi transoins 13 ot' any approved. construction; but the said space between the root off' the car and the opposing portion of the clearstorv is never thoroughly closed, so that. a weak current ot air will pass through the clearstory and above the main root structure even when the transonls have been brought to an upright or closed position. This main root structure at its central. portion is pro\f'ided with a longitudinal opening l.l-, extending the length ol the clearstory that is to say, the length ot the (.:learstonyY be tween the end partitions l0-and the edges ot the inain root structure A, 'Forming the side `walls oli the said opening I1.l, are given a. downward andv inward curve, as is shown at l5 in Fig. 2, so that the t'resh air which enters between the .main root structure and the clearstory will pass from one side of the clearstory to the other, causing an ejection like suction to draw the toul air ilroi'n the interior ot the car, especially when it Vis closed, and this toul air is replaced by the pure air il'rom outside.

A shaft 1G extends through the central portion ot the clearstory, being ljournaled in the partitions l() and the central nirtition ll, and the said shatt has suitable journals at the said. points. The transolns lil extend from the end partitions l() to the central boxpartition 11 and are suitably journalcd, and. at convenient points on the shaft lo disks 'i7 are secured. These disks are coi'inectei'l with the end portions et the transoins 13 by means ot links 1S, as is shown best `in Figs. l and 3. The shaft ile is provided withv any desired number ot handles lil, extending down into the car, so that they are readily accessible. and may be conveniently operated 'troni the interior oli the car to bring the transoms to their aliproxiinately closed position (shown by dotted lines in Fig. 2) and to their open position, (shown by positive lines in the saine figure.)

The clearstory B is provided with an inner shell B, and this shell at its ends is inclined from (the outer end of the upper portion of the clearstory downwardly and inwardly, as is shown at Q0 in Fig. The central port-ion of the said shell B is upwardly arched as shown at 2l in Fig. 2. Under this construction it is obvious that the air or wind entering at one side of the clearstory is directed downward by the slope 2O of the inner shell, and at the saine tiine upward by the slope of the roof, thereby receiving' a compression and going out of the opposite side of the elearstory with an ejector-like action sucks the foul air in the carbody with it.. T he object of the upward arch Bf in the shell or ceiling of the clearstory to act on the air coining through the open space l2, in conjunction with the curves l5, to prevent a downward draft into the body of the car, ventilating the said car altogether by suction of the foul air therein contained, fresh air replacing it through the doors, which in a` street-car are frequently opened and shut.

This iniprovenient is adapted to any forni of ear or vehicle of like type, and it is evident that when applied a car or like vehicle will be efl'ectually ventilated without the oecupants being necessarily subjected to drafts. Electric lights 22 or other illuminating inediuins niay be applied to the upper portion of the clearstory in the custoinary inanner.

Having thus described niy invention, l claiin as ne and desire to secure by Letters Patentl. A car the roof of which is provided with a longitudinal opening, the side walls of said opening being downwardly and inwardly inclined, a clearstory erected on the said roof above the opening therein and open at its sides, the said clearstory being provided with an inner shell having side sections inclined downwardly and inwardly and a central upwardly-arched section, transoins inounted in the elearstory, adapted to open or to practically close the open sides of the said clearstory, a shaft connnon to all of the transonis, nieans for turning the said shafty freni the interior of the car, disks secured to t-he said shaft, and links pivotally connected with the disks and with the transonis, as described.

A car the roof of which is provided with a central longitudinal Opening, the side walls whereof are curved downwardly and inwardly, a clearstory erected on the roof over the opening therein, the clearstory being closed at its ends and open at its sides, an inner shell for the upper portion of the clearstory, having side sections downwardly and inwardly inclined and a central arched section, transoins for the open side portions of the clearstory, bearings for the said transoins, a shaft adapted to operate all of the transonis, handles attached to the shaft, extending down below the inner face of the roof of the vehicle, disks secured on the said shaft, and links pivotally connected with the disks and having' pivotal connection with the transoins, all arranged for operation in the inanner described.

3. In cars and siinilar vehicles, a roof having a central longitudinal opening therein, the edges of the opening'being curved downwardly and inwardly, a clearstory on the roof above the Opening thereof, and having side openings, the inner shell of the clearstory being upwardly arched at its center and downwardly and in vardly inclined at its ends, and transoins in the side openings of the clearstory.

i. ln cars and siniilar vehicles, a roof having longitudinal opening' therein, a clearstory on the roof above the opening and having open sides, a central box-like partition extending froin the clearstory to the roof of the car, longitudinal shafts inounted in the box-partition and the outer end walls of the openings of the clearstory, pivoted transonis on opposite sides of each shaft, and connections between the transonis and shafts for operating the foriner froin the latter, as set forth.

ln testimony whereof l have signed iny. 

